diff --git a/component/mariadb/mariarocks.cfg b/component/mariadb/mariarocks.cfg
index c6f97c414ea603a75bf2a45ff9500b3d075e2407..a4f1af7edc3933a165be795ce06e28167865814f 100644
--- a/component/mariadb/mariarocks.cfg
+++ b/component/mariadb/mariarocks.cfg
@@ -1,10 +1,12 @@
 # Do not extend any file that touch buildout:parts.
 
 [mariadb]
-version = 10.2.12
-md5sum = c5bce588e3c53ebc417e37ecb0967aee
+version = 10.2.11
+md5sum = 954088299fe5f11b4fda3b540558adbd
 stable-patches =
 configure-options +=
+# force build of TokuDB due to a regression in 10.2.11
+  -DTOKUDB_OK=1
   -DCMAKE_C_COMPILER=${gcc:location}/bin/gcc
   -DCMAKE_CXX_COMPILER=${gcc:location}/bin/g++
 extra_cflags = -I${zstd:location}/include